ES2170677A1 - Protection system for high impedance faults in electrical distribution lines - Google Patents
Protection system for high impedance faults in electrical distribution linesInfo
- Publication number
- ES2170677A1 ES2170677A1 ES200001619A ES200001619A ES2170677A1 ES 2170677 A1 ES2170677 A1 ES 2170677A1 ES 200001619 A ES200001619 A ES 200001619A ES 200001619 A ES200001619 A ES 200001619A ES 2170677 A1 ES2170677 A1 ES 2170677A1
- Authority
- ES
- Spain
- Prior art keywords
- distribution lines
- protection system
- phase
- line
- impedance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Protection system for high impedance faults in electrical distribution lines.The system is designed to detect possible incidents produced through phase-phase and phase-earth, providing protection even when the obtained impedance levels are elevated. The system, which can be used in a distribution subsystem with the corresponding distribution bar (1) from which are derived the distribution lines (2) (each one with a switch (8)) includes a signal generator (4) that are conveniently modulated and encrypted so that they can be detected by a sensor (6) placed in each line (2) and linked to protection system (7) connected to the corresponding switch (8) on each line (2). The unusual part is that the signals coming from the generator (4) are applied to the distribution bar (1) via an adaptor mechanism (5) so that the protection device (7), using the information from the generator (4) and the intensity measured by the sensor (6), establishes the line impedance variation (2) operating when specific changes in the impedance occur.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200001619A ES2170677B1 (en) | 2000-06-29 | 2000-06-29 | PROTECTION SYSTEM FOR HIGH IMPEDANCE FAULTS IN ELECTRICAL DISTRIBUTION LINES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200001619A ES2170677B1 (en) | 2000-06-29 | 2000-06-29 | PROTECTION SYSTEM FOR HIGH IMPEDANCE FAULTS IN ELECTRICAL DISTRIBUTION LINES. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2170677A1 true ES2170677A1 (en) | 2002-08-01 |
ES2170677B1 ES2170677B1 (en) | 2003-12-16 |
Family
ID=8494068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200001619A Expired - Fee Related ES2170677B1 (en) | 2000-06-29 | 2000-06-29 | PROTECTION SYSTEM FOR HIGH IMPEDANCE FAULTS IN ELECTRICAL DISTRIBUTION LINES. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2170677B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190128971A1 (en) * | 2017-11-02 | 2019-05-02 | Siemens Aktiengesellschaft | Modification of test measurement signals for protective devices for electric power networks |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988005543A1 (en) * | 1987-01-15 | 1988-07-28 | Jerrings Donald I | High impedance fault analyzer in electric power distribution |
US5602709A (en) * | 1992-07-10 | 1997-02-11 | Technisearch Limited | High impedance fault detector |
US5734575A (en) * | 1993-10-22 | 1998-03-31 | New York State Electric & Gas Corp. | Method and apparatus for detecting high-impedance faults in electrical power systems |
US5917690A (en) * | 1996-06-03 | 1999-06-29 | Scientific-Atlanta, Inc. | Regulated current power supply with isolated secondary and output current limiting |
US6154036A (en) * | 1999-03-18 | 2000-11-28 | Abb Power T&D Company Inc. | Ground fault location system and ground fault detector therefor |
-
2000
- 2000-06-29 ES ES200001619A patent/ES2170677B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988005543A1 (en) * | 1987-01-15 | 1988-07-28 | Jerrings Donald I | High impedance fault analyzer in electric power distribution |
US5602709A (en) * | 1992-07-10 | 1997-02-11 | Technisearch Limited | High impedance fault detector |
US5734575A (en) * | 1993-10-22 | 1998-03-31 | New York State Electric & Gas Corp. | Method and apparatus for detecting high-impedance faults in electrical power systems |
US5917690A (en) * | 1996-06-03 | 1999-06-29 | Scientific-Atlanta, Inc. | Regulated current power supply with isolated secondary and output current limiting |
US6154036A (en) * | 1999-03-18 | 2000-11-28 | Abb Power T&D Company Inc. | Ground fault location system and ground fault detector therefor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190128971A1 (en) * | 2017-11-02 | 2019-05-02 | Siemens Aktiengesellschaft | Modification of test measurement signals for protective devices for electric power networks |
US10884067B2 (en) * | 2017-11-02 | 2021-01-05 | Siemens Aktiengesellschaft | Modification of test measurement signals for protective devices for electric power networks |
Also Published As
Publication number | Publication date |
---|---|
ES2170677B1 (en) | 2003-12-16 |
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Legal Events
Date | Code | Title | Description |
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